“He's been in great form this season so it's really unfortunate news. However, he's in great hands with the medical team and we look forward to having him back on the pitch soon.

“These are opportunities where players can step up, and I've been thoroughly impressed by the way the likes of Paul Grant and Zach Mercer have performed over the last few weeks, and I'm sure they'll continue to do so.”

The 27-year-old Faletau has won 70 caps for Wales and featured on the past two Lions Tours.